A weld neck flange, also known as a tapered hub flange, It is characterized by a long, tapered neck that is welded to a pipe or fitting

STANDARD – ANSI/ASME 16.47 – SERIES -A & B
| Weld Neck Flange | |
|---|---|
| Sizes | 26” to 60” |
| Class | 150, 300, 600, 900 Lbs |
| Types | RF, RTJ |
| Material | Carbon steel, Alloy Steel, Stainless steel, Duplex |